World Wide Input Voltage 100-240VAC 50/60Hz OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection). Tested Units. In Great Working Condition. eeTao 30 days Refund. 24 Months Exchange. eeTao New Global AC / DC Adapter Charger Compatible with Nakto Discovery 20" Super Cruiser 26" Santa Monica 26 inch Steady 48V 48V8A 48V10A 48V12A 48 Volt 8Ah 48 Volts 10Ah 48.0V 12Ah 48VDC 48 V 48 VDC Lithium-ion Li-ion Battery Folding Electric Bike Fat Tire Mountain eBike City-Electric Bicycle E-Mountain E-bike Power Supply Cord Cable PS Charger Mains PSU Compatible with: Nakto 48V Battery eBike Electric Bike; NAKTO 26" 500W 48V 12A Lithium Battery Electric Bike Fat Tire Mountain eBike; NAKTO DISCOVERY 20" Fat Tire Electric Bike 300W 48A 8Ah Li-Battery Montain E-Bike; Nakto Discovery 48V/8Ah 350W Fat Tire Electric Bike; Nakto Super Cruise 26 inch Fat Tire eBike Electric Bike; Nakto 26" Super Cruiser 48V 500W Fat Tire Electric Bike; Compatible with: Nakto Santa Monica 26 inch eBike Electric Bike; NAKTO Santa Monica 48V/10Ah 500W Cruiser Electric Bike; Nakto Steady Fat Tire eBike Electric Bike; Nakto Steady 500W 48V 10Ah Lithium Battery Fat Tire eBike Folding Electric Bike Power Supply ⚠️!!!Tips: Rechargeable batteries don't last forever, the average battery last 1 to 3 years. If the battery is old/dead, it will not accept a charge. But not charger's problem. If you're not sure whether battery or charger is dead or not. You must have a volt meter in order to tell whether or not a charger is working. eeTao New Global AC / DC Adapter Charger Compatible with Nakto Discovery 20" Super Cruiser 26" Santa Monica 26 inch Steady 48V 48V8A 48V10A 48V12A 48 Volt 8Ah 48 Volts 10Ah 48.0V 12Ah 48VDC 48 V 48 VDC Lithium-ion Li-ion Battery Folding Electric Bike Fat Tire Mountain eBike City-Electric Bicycle E-Mountain E-bike Power Supply Cord Cable PS Charger Mains PSU CECCCROHS 100-240